baber/WOPTO huggingface dataset:
Patent GB-942147-A (GB)
Title: Light sensitive material for stencil production
IPC: C08L77/00
Filed: 1960-09-27
Abstract: N-alkoxymethylated poly-e  caprolactam is prepared for commercial poly-e  caprolactam with a K-value of 63-69 and an intrinsic viscosity of 0.5 to 1.0 by dissolving 100 parts by weight of the caprolactam in 300 parts by volume of glacial acetic acid and 75 parts by volume of 90% formic acid on a steam bath.  A hot-filtered solution of 100 parts by weight of paraformaldehyde in 250 parts by volume of methanol is added dropwise with stirring at 70-80 DEG C., the stirring being continued for 4 hours at 70 DEG C. after which the mixture is cooled to 55-60 DEG C. and introduced quickly with vigorous stirring into an excess of 5% ammonia solution to which up to 20% acetone may be added to precipitate the N-alkoxy-methylated product, which is then filtered and washed.
Patent GB-1346474-A (GB)
Title: Internally meshing gear pumps
IPC: F04C15/00
Filed: 1971-07-15
Abstract: 1346474 Gear pumps O ECKERLE 15 July 1971 [17 July 1970] 33214/71 Heading F1F In an internally meshing gear pump, a sheet metal plate 9 clamped between the central housing 8 and an end cover 2 and pressure loaded over an area 13 defined by an O-ring 12 by pressure fluid via a bore 14 provides axial sealing of the pump chamber, and the ring gear 7 is radially biased against the pinion 4 and a pivoted filling piece 5 which may be lapped in by pressure fluid fed to a space 15 delimited by spring-pressed vanes 16, 17 mounted in the housing 8. Bores 21a, 21b return lubricating fluid from the bearings of pinion shaft 1 to the suction side of the pump. The ring gear may be mounted in a bearing ring (23), Figs. 3 and 4, (not shown) which is located with a small amount of freedom within the housing by means of a pair of fixed axially or radially inclined pins (24, 25) or (31, 32), Fig. 5, (not shown), engaging in diametrically opposite slots in the ring (23), which is radially biased, the vanes being replaced by rubber strips (26) located in grooves in the ring (23). The ring may be further guided by lugs (35) in the housing cooperating with slots (36) in the ring, Figs. 6 and 7, (not shown). In another embodiment Fig. 8, the plate 41 is located in a recess in the associated end plate, the ring gear 40 being radially loaded by high pressure fluid supplied to the spaces between pairs of shoes 49 via bores 58, the space 65 between the centre pair of shoes 49 being connected to fluid at suction pressure via channels 67, 68. Apertures 50 and 51 in the plate 41 connected respectively to the low pressure side of the pump and to the high pressure zone 52 loading the plate 41 regulate the pressure build-up in the pump together with intermediate throttled apertures 53. Fluid trapped between the engaging teeth is relieved via aperture 54 in plate 41 and returned to the working spaces via bore 55. A pocket 57 in the suction region of the pump communicates with a helical groove 56 so that fluid may be drawn therethrough to lubricate the shaft. Precise axial alignment of the central housing and the end covers may be ensured by providing the central housing with shoulders engageable with correspondingly shaped recesses in the end covers, Fig. 14, (not shown) or pins (67) located in through bores (73) in the end covers are made of a cold workable material and are punched into conical recesses (72) in the central housing, Fig. 12 and 13, (not shown).
Patent GB-671858-A (GB)
Title: Broadband amplifier using gas discharge plasma
IPC: H01J17/04
Filed: 1949-12-30
Abstract: 671,858. High-frequency discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. Dec. 30, 1949 [March 15, 1949], No. 33331/49. Class 39 (i). [Also in Group XL (c)] An electromagnetic wave amplifier comprises a length of hollow rectangular wave-guide 6, connected at one end to a source 7 of electromagnetic waves to be amplified and at the other to a utilization load 8, and a gas-filled discharge tube 1 setting up an oscillatory gas plasma along the wave-guide such that the plasma provides a negative resistance path for the said waves. The discharge tube envelope is transparent to the electromagnetic waves and is filled with a gas such as helium, neon, argon, krypton, hydrogen, nitrogen or mercury at a pressure of from 10<SP>-6</SP> to 10<SP>-2</SP> atmospheres. The cathode 2 and anode 3 are spaced 100 or more mm. apart and are connected through a currentlimiting resistance 5 to a battery 4 or to a lowfrequency current supply, the voltage of which is made adjustable so as to control the electron density and the electron transit time between the cathode and anode.
Patent GB-1011938-A (GB)
Title: Dual purpose transport vehicles
Inventor: SUTTON WILLIAM ALFRED
IPC: B60P3/24
Filed: 1963-08-23
Abstract: 1,011,938. Tank vehicles. SUTTON & SON (ST. HELENS) Ltd. Aug. 20, 1964 [Aug. 23, 1963], No. 33399/63. Addition to 938,632. Headings B7B and B7L. The side walls 13 of a vehicle body as described in Specification 938,632 are mounted on vertical extensions 12a and are provided with flanges 14 so that the collapsed tanks 17 may be stowed beneath the folded-down side walls.
Patent GB-1354787-A (GB)
Title: Processes for producing methacrylonitrile
IPC: C07C67/00
Filed: 1971-07-16
Abstract: 1354787 Ammoxidation process SUMITOMO CHEMICAL CO Ltd 16 July 1971 [18 Sept 1970] 33569/71 Heading C2C [Also in Division B1] Methacrylonitrile is produced by the vapourphase reaction of isobutylene, ammonia and oxygen by contacting the reactants at elevated temperature with a catalyst comprising an active material of the formula Mo 12 Bi b Fe c Tl d X e P f O g , wherein X is nickel, magnesium, manganese and/or cobalt and b is 0À1 to 5, c is 0À1 to 5, d is greater than zero but not more than 2, e is 2 to 15, f is 0 to 5 and g is 38À3 to 81À5. The catalyst may be supported on a carrier, e.g. silica, alumina, silicon carbide or titanium dioxide.
Patent GB-1375762-A (GB)
IPC: G03G15/00
Filed: 1972-07-19
Abstract: 1375762 Handling thin material KATSURAGAWA DENKI KK 19 July 1972 [28 July 1971 (2)] 33664/72 Heading B8R In an electrostatic printing machine the imaged copy sheet P is easily stripped from the drum 10, Fig. 1, by string-like separating members 16, Fig. 2, which extend between fixed rods 17 at an angle # to the direction of travel of the sheet. For improved imaging two transfer rollers may replace the single roller 15 of Fig. 1. In a further embodiment each of the two transfer rollers may be grooved such that the string-like members are located in the grooves.
Patent GB-880892-A (GB)
Title: An improved method and apparatus for the manufacture of tiles
IPC: B28B13/02
Filed: 1959-10-05
Abstract: 880,892. Moulding tiles. CHERNEY, A. J. May 20, 1960 [Oct. 5, 1959], No. 33696/59. Class 87(2). [Also in Group X] A flat hardboard support 11 is fed beneath a continuous sheet of clay 5 formed by rollers 3, 4 from clay mass 2 and the sheet is passed beneath the moulding element 7 of a press 6 which cuts off the sheet adjacent the edges of the support and forms a plurality of tiles 12 joined by a web 13. The web is then cut, with the support 11 resting on a turn-table 9, by a roller 10 carrying cutting blades, said table being rotated through 90 degrees between cutting operations. Support 11 and the cavities of element 7 may have roughened surfaces to produce a tile with a matt finish, Figs. 6 and 7 (not shown), and the tiles may be glazed as well as fired. In the automatic apparatus of Fig 8, (not shown), the sheet of clay is produced by pug mill 23 and rolling means 25, 26, a dispenser 27 of supports 28 is provided together with an endless belt 29 to transport the tiles, and said tiles are cut by two cutters 36, 37 operating at right angles. Cutters with curved blades may be used and tiles of various shapes, e.g. triangular, may be produced.
Patent GB-1033825-A (GB)
Title: Improvements relating to direct-current electric motors
Inventor: CAWTHORNE WILLIAM ROBERTSON
IPC: H02K25/00
Filed: 1961-09-20
Abstract: 1,033,825. Electric motors: magnetic switches. A. REYROLLE & CO. Ltd. Sept. 19, 1962 [Sept. 20, 1961], No. 33706/61. Headings H2A and H2B. In a D.C. electric-motor, current in stator winding 15 only flows for part of a revolution and is controlled by the magnetically operated switch 14 so that unidirectional driving torque is obtained. The motor has an unwound rotor 11 having polepieces 18 which co-operate with stationary yoke 12 and has its axis displaced by 45 degrees from that of a permanent magnet 25 mounted on the same shaft and rotating with it. The magnetically operated switch 14 comprises two normally open contact blades of magnetic material 20 enclosed in a capsule filled with an inert gas, and operates when the blades become oppositely magnetized as the magnet rotates towards the position shown. Operation of the switch is stated to occur when the magnet is Œ 40 degrees from the vertical position and so torque is obtained only when the poles of the rotor 11 are approaching the stationary poles 12. Attraction between the switch contacts and the permanent magnet ensures that the rotor stops in a favourable starting position i.e. with the switch contacts closed. Reference has been directed by the Comptroller to Specification 892,823.
Patent GB-1355265-A (GB)
Title: Sulphur-containing organo-organo-oxysilanes and use thereof
IPC: C07F7/18
Filed: 1971-07-19
Abstract: 1355265 Sulphur-containing silanes; rubber compositions DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 19 July 1971 [18 July 1970] 33710/71 Headings C3S C3E C3P and C3Q Novel sulphur-containing silanes of the formula A-X-Z, wherein A denotes -SCN, R<SP>2</SP>S-CSS- or (R<SP>3</SP>) 2 N-CSS-, R denotes H, -SH or -N(R<SP>1</SP>) 2 , R<SP>1</SP> denotes H, phenyl or C 1-5  alkyl, R<SP>2</SP> denotes a monovalent C 1-15  hydrocarbon or heterocyclic radical, R<SP>3</SP> denotes H or a monovalent C 1-15  hydrocarbon radical, or both R<SP>3</SP> substituents together with the nitrogen atom form a heterocyclic radical, X denotes a C 3-18  divalent hydrocarbon radical optionally interrupted by O, S and/or N atoms and optionally substituted by halogen, pseudohalogen, phenyl, halophenyl, (C 1-3  alkyl)phenyl or di(C 1-3  alkyl)- phenyl, Z denotes -SiR<SP>4</SP>(OR<SP>5</SP>) 2 , -Si(OR<SP>5</SP>) 3 , and R<SP>4</SP> and R<SP>5</SP> independently denote -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 CH 3 , -CH(CH 3 ) 2  or -CH 2 CH 2 CH 2 CH 3 , and other silanes of the formula A-X-Z, wherein A alternatively denotes R<SP>2</SP>O-CSS-, are prepared by reacting halogen -X-Z with A-Me or with A-H in the presence of an acid binding agent, wherein halogen denotes Cl, Br or I and Me denotes ammonium, hydrocarbon-substituted ammonium, an alkali or alkaline earth metal, Mn, Fe, Co, Ni, Zn, Cd, Cu or Ag. Examples describe the preparation of 3-thiocyanatopropyl triethoxysilane, 3 - triethoxysilyl - propyl. ethyl - xanthogenate, 3 - thiocyanatopropyl tri - n - butoxysilane, and 2 - diethylamino- 4 - mercapto - 6 - (3 - triethoxy - silyl - propyl)- thiotriazine. The above compounds may be used either as vulcanization agents in the crosslinking of elastomers or as a binding agency between inorganic fillers and organic polymers, the required effects occurring in the presence of residual moisture in the mix and in the presence or absence of conventional accelerators or activators. Examples describe the vulcanization of styrene-butadiene and natural rubbers using the above compounds as vulcanizing agents added to the mix or used to pre-treat silica fillers, the vulcanization being carried out in the presence of sulphur and the presence or absence of conventional additives such as zinc oxide, stearic acid, dibenzothiazyl disulphide and diphenyl guanidine.
Patent GB-1419958-A (GB)
Title: Extraction of flavour and fragrance components from plant material
IPC: A23L27/10
Filed: 1972-07-19
Abstract: 1419958 Flavourings; tea and coffee extracts BROOKE BOND LIEBIG Ltd 9 July 1973 [19 July 1972] 33795/72 Heading A2B Flavours and fragrances are extracted from vegetable material by treatment with a non- polar fluorinated hydrocarbon solvent having 2 or more c-atoms e.g. 1, 2 dichlorotetrafluoroethane. If the vegetable material is roasted or fermented a polar solvent, e.g. water, acetone, dichlorofluoromethane, is also used, simultaneously or sequentially. The solvents are evaporated off to isolate the flavouring material, which may be an oil. Essential oils can be separated from fixed oils by adding detergent to the solvent. The examples relate to the treatment of coffee, tea, orange, lemon, clementine, grapefruit, lime, cinnamon and pepper.
Patent GB-340186-A (GB)
Abstract: 340,186. Howard, F. March 18, 1930. Totalizators. - A manually-operated apparatus comprises a board bearing a plurality of bundles of tickets, each ticket bearing an indication of the stake, the runner and a serial number to indicate the total number of stakes on the runner corresponding to the ticket, the ticket bundles being arranged in groups according to the stake values indicated on the tickets. The board 1, which may be built in sections or be folded for portability carries rows of tickets comprising bundles 2. Each horizontal row relates to a different stake value, the vertical rows relating to the various runners. Each ticket, Fig. 4, comprises a main portion bearing various data such as 15, 19 and a counterfoil portion bearing corresponding data, the bundles being held in spring clips 5 attached to metal strips 6.
Patent GB-1275627-A (GB)
Title: Improvements in arc welding
Inventor: BROWN ALEXANDER
IPC: B23K35/30
Filed: 1969-07-07
Abstract: 1275627 Welding by fusion MUREX WELDING PROCESSES Ltd 6 July 1970 [7 July 1969] 34071/69 Heading B3R When using the process of unshielded arc welding of Specification 1,183,461, to produce fillet or deep penetration welds resulting in high dilution of the weld metal by workpiece metal, the electrode used, comprising a cored tubular electrode having a mild steel sheath devoid of external flux, is capable of depositing "undiluted weld metal" (i.e. metal derived only from the electrode) containing, by weight, 1À3-2À4% Al and 0À5-2À5% Mu. Electrode examples may include, percentage by weight of the electrode: Aluminium 2À0-8À0 Titanium 0À01-0À2 Silicon 0À05-1À0 Silica 0-12 Manganese 0À5-2À0 Manganese oxide 0-8À0 Fluorides (CaF 2 ) 0À5-16À0 Carbonates (MgCO 3 , CaCO 3 ) 0-10À0 Slag formers (potash, soda. or lime felspar, potassium or sodium silicate) 4À0-8À0 Slag modifiers (alumina, titania, zirconia, silica) 0-4À0 Arc stabilizers (oxides of magnesium, alkali or alkaline earth metals) 1À0-8À0 Carbon 0À3 max Aluminium powder 2À0-9À0 Iron powder 0-40À0 Iron oxide 0-12À0 Potassium titanate 0-6À0 "Undiluted weld metal" may include percentage by weight, Aluminium 1À4-2À0 Manganese 0À6-1À8 Silicon 0À1-0À8 Titanium 0À02-0À15 Carbon 0À07-0À12 Iron Bal.
Patent GB-977092-A (GB)
Title: Improvements in or relating to ion exchange processes
IPC: B01J41/04
Filed: 1962-09-06
Abstract: Alkyl benzene sulphonates may be removed from water by contact with an anion-exchange resin which is subsequently regenerated by treatment with a polar solvent and a mineral acid.  Specifications 450,309, 557,414, 562,402, 628,821, 654,706, 679,850, 829,696, 867,396 and U.S.A. Specifications 2,389,865, and 2,610,156 are referred to.
Patent GB-960538-A (GB)
Title: Substituted carbamate and its preparation
IPC: C07C271/06
Filed: 1962-09-07
Abstract: The invention comprises N-methyl-2,2-diphenyl-3-hydroxypropyl carbamate and its preparation by reacting 1,3 propanediol (a) with phosgene or a lower alkyl carbonate, e.g. ethyl carbonate, to give 5,5 diphenyl-1,3 dioxan-2-one, and reacting this with aqueous or anhydrous methylamine, (b) with phosgene or carbophenoxy chloride, and reacting the product with methylamine, or (c) with methyl isocyanate. The compound of the invention possesses muscle relaxant activity.
Patent GB-210249-A (GB)
Title: Improvements in and relating to label wiping devices
IPC: B65C9/36
Filed: 1922-12-18
Abstract: 210,249. Lyons & Co., Ltd., J., and Oliver, G. W. Dec. 18, 1922. Labeling.-In apparatus for wiping down labels on articles bearing a label on each side, such as packets of tea, by forcing them between adjustable brushes, the brushes 1, 2 are mounted on plates 4, 5 pivoted at their upper ends and connected bv a screwed rod 12, so that the distance between the brushes can be adjusted by means of a nut 13 on the rod 12. The brushes are preferably pivoted by turning over the ends of the plates 4, 5 to form hooks 14, 15 by which they are suspended from rods 6, 7, so that the plates and brushes can be readily removed together.
Patent GB-926664-A (GB)
Title: Improvements in or relating to printing machinery
IPC: B41K3/12
Filed: 1958-10-28
Abstract: 926,664. Holders for detached type. REJAFIX Ltd., G. CHITSON, and A. W. EXCELL. Oct. 28, 1959 [Oct. 28, 1958], No. 34549/58. Class 100 (2). A type-holder, Figs. 1, 3 and 4, comprises a body portion 11, and a removable segmental portion 15, Fig. 3, having an arcuate groove 16 having a shoulder 17a which retains type elements against radial movement. The shanks of the type elements fit tightly in the groove 16 between a stop 29 and a spring 31. The portion 15 is secured to the body portion 11 by a ring 33 engaging channels 32 and 32a in the portions 11 and 15 respectively. The ring 33 has a projection 35 engageable in a recess 34 in the portion 11. In another embodiment, a body portion 111, Fig. 5, has a channel 114 for engagement with lugs 121 on a removable segmental portion 115a locked in position by rotation relatively to the portion 111. One side of the portion 115 has an arcuate groove 116 for receiving type 126 retained by a shoulder 117a. The body portion 115 carrying segmental type holding portions 115a, 115b is mounted on a threaded shaft 141, Fig. 7 (not shown), between driving discs 142 locked in position by nuts 143.
Patent GB-292034-A (GB)
Title: Improvements in oiling of flyers in spinning and like frames
IPC: D01H7/40
Filed: 1927-12-21
Abstract: 292,034. Boyd, T. A., Boyd, H. A., and Boyd, Ltd., J. & T. Dec. 21, 1927. Centrifugal-action lubricating. -In flyer spinning or like frames wherein the flyer is supported by a bearing member 2 arranged above the flyer legs 10, oil contained within a hollow wharve 9 surrounding the lower end of the bearing is carried around against a flat spring 11 projecting from the member 2 into the path of the oil and is forced thereby through a hole 2<3> into the bearing. The spring 11 is either rigidly connected to the member 2 or is free to turn slowly thereon, and the upper end of the wharve is provided with an inwardlyextending flange 9<3> to retain the oil. As shown, a conical spindle 5 secured to the wharve is journaled in the member 2, but the spindle may be cylindrical or ball or roller bearings may be interposed between the spindle and the member 2. In a modification, the flyer is supported by ball bearings arranged between the wharve 9 and the member 2, the spring 11 serving to deflect oil on to the balls. Specification 3703/03, [Class 120, Spinning], is referred to.
Patent GB-1396946-A (GB)
Title: Rolling mill for rolling out slabs
IPC: B21B1/06
Filed: 1972-07-24
Abstract: 1396946 Rolling mills MANNESMANNROHREN-WERKE AG 24 July 1972 [23 July 1971] 34579/72 Heading B3M A reversing rolling mill for rolling slabs includes a stand 3, roller tables 1 and 4 upstream and downstream of the stand, and a transversely movable roller table unit incorporated in the table 1 and/or 4. After a first slab has passed from a furnace 2 to the stand 3 and has been reverse rolled in a first stage, the slab is passed to a section 7 of the unit and moved transversely out of the rolling line. A second slab can then be rolled while the first one cools to a desired temperature. The second slab is then similarly shifted out of the rolling line and the initial slab rolled for a second stage. By providing several sections 10, 7, 11 and 12, a number of slabs can be processed simultaneously. A hot straightening machine 13 follows the stand 3.
Patent GB-926931-A (GB)
Title: Manifolding writing set
IPC: B41L1/22
Filed: 1960-10-11
Abstract: 926,931. Manifolding units. J. BURGMER. Oct. 11, 1960 [Oct. 17, 1959], No. 34726/60. Class 16. A manifolding unit wherein writing sheets a 1 , a 2  and interleaved carbon sheets b 1  are connected together at a head strip by spots of adhesive g and each writing sheet has a line of perforations c 1  adjacent the head strip, the carbon sheets being unperforated, is characterized in that the carbon sheets are smaller in width than the writing sheets and stop short of at least one longitudinal edge d of the unit, whereby the writing sheets are separated from the unit by gripping the head strip in one hand and the marginal edge d in the other and pulling apart, the carbon sheets remaining attached to the head strip. The writing sheets are provided with filing perforations e 1 , e 2  along the edge d and the carbon sheets are free from ink in the region of the head strip to facilitate gluing.
Patent GB-340098-A (GB)
Title: An improved process for the absorption of olefines in sulphuric acid
IPC: C07C29/04
Filed: 1929-11-14
Abstract: Mixtures of olefines of different molecular weight are absorbed by sulphuric acid in three successive stages, the acid for the first stage being below 65 per cent strength, for the second stage between about 78 and 82 per cent strength and for the final stage above 90 per cent strength, the temperature being kept below 120 DEG  F. during first and second stages.  The acid may be collected separately from each stage.  When gaseous mixtures of olefines are used, it is preferable to add a mineral oil together with the sulphuric acid to assist in the absorption.  In carrying out the process, the rate of flow of the materials is so adjusted that the olefines higher than propylene are absorbed in the diluted acid in the first and second stages whilst propylene is completely absorbed in the concentrated acid in the third stage.  Fig. 1 shows <PICT:0340098/IV/1> three absorption towers 1, 2 and 3 constructed with temperature regulation coils 4, and connected in series for the passage of the olefine gas which enters tower 1 by way of a line 5 and temperature regulation chamber 6, and leaves the top of tower 3 by a line 7.  Sulphuric acid of the required strength is supplied to the top of each tower from tanks 8, 9 and 10, the temperatures being suitably regulated by passing through chambers 11, 12 and 13 respectively.  Mineral oil, when used in addition to the acid, is introduced by way of the pipe 14 and lines 15-17.  The acid liquor and oil are separated in the tanks 18-20, the former being removed to hydrolyzing apparatus, and the latter being recirculated through the system by means of the pump 25. Absorption of isobutylene and its higher homologues and some secondary olefines above hexylene takes place in tower 1, secondary butylene, amylene, hexylene in tower 2, and propylene in tower 3.  In another type of apparatus, only one tower is used, the olefine being fed in at the bottom and concentrated sulphuric acid at the top. Water or steam is added at two intermediate places in the tower so that the acid is twice diluted to within the limits given above during its passage through the tower, the olefines being thereby absorbed in three successive separate stages.
Patent GB-755599-A (GB)
Title: Improvements in heels for shoes
IPC: A43B13/34
Filed: 1954-12-02
Abstract: 755,599. Shoe heels. MAXWELL, W. T. Feb. 2, 1955 [Dec. 2, 1954], No. 34916/54. Class 17 (2). A heel comprises a metal part a which may be of aluminium or its alloys, having an integral dowel b which fits tightly into a hole in a wooden or bonded fibrous material heel seat c to which the insole d is nailed. The dowel is stuck to the seat piece by a synthetic resinous bond. A top piece g may be attached to the part a by nails entering plugged holes therein. The heel may be suitably covered. The Provisional Specification states that the metal part may be hollow and that a dowel may be formed on the heel seat to enter a hole in the metal part, the parts then being secured together as by riveting.